Mapp v. Ohio, case in which the U.S. Supreme Court on June 19, 1961, ruled (6–3) that evidence obtained in violation of the Fourth Amendment to the U.S. Constitution, which prohibits “unreasonable searches and seizures,” is inadmissible in state courts.

The Ohio Supreme Court believed a "reasonable argument" could be made that the conviction should be reversed "because the methods' employed to obtain the [evidence] . . . were such as to 'offend "a sense of justice,"'" but the court found determinative the fact that the evidence had not been taken "from defendant's person by the use of brutal ...

Mapp v. Ohio, 367 U.S. 643 (1961), was a landmark U.S. Supreme Court decision in which the Court ruled that the exclusionary rule, which prevents a prosecutor from using evidence that was obtained by violating the Fourth Amendment to the U.S. Constitution, applies to states as well as the federal government.

Dollree Mapp was convicted of possessing obscene materials after an admittedly illegal police search of her home for a fugitive. She appealed her conviction on the basis of freedom of expression. Were the confiscated materials protected from seizure by the Fourth Amendment?

2017年3月11日 · Case Summary of Mapp v. Ohio: Mapp’s home was searched absent a warrant. The search yielded the discovery of material classified as “obscene” under Ohio state law. The Supreme Court held that evidence obtained from an unreasonable search and seizure could not be used against the accused in criminal state court.

2020年8月13日 · The Supreme Court's 1961 decision in Mapp v. Ohio made huge changes for the rights of those accused of a crime by deciding whether evidence gathered without a warrant was admissible in state court. Find out more on FindLaw's Supreme Court Insights.

In particular, this case found that the exclusionary rule, which prohibits prosecutors from using evidence acquired illegally in violation of the Fourth Amendment, applies to both federal and state governments. Read the Full Opinion.

Mapp v. Ohio was a 1961 landmark Supreme Court case decided 6–3 by the Warren Court, in which it was held that Fourth Amendment’s protection against unreasonable searches and seizures applied to the states and excluded unconstitutionally obtained evidence from use in state criminal prosecutions .

They arrested Mapp and charged her with violating an Ohio law against the possession of obscene materials. She was found guilty in court and sentenced to jail. After losing an appeal to the Ohio Supreme Court, Mapp took her case to the U.S. Supreme Court.

2019年5月3日 · Ohio, decided by the U.S. Supreme Court on June 19, 1961, strengthened the Fourth Amendment protections against unreasonable searches and seizures by making it illegal for evidence obtained by law enforcement without a valid warrant to be used in criminal trials in both federal and state courts.